Lifting device and long steel rail transport vehicle set

Abstract

The invention provides a lifting device and a long steel rail transport vehicle set, wherein the lifting device comprises a hydraulic power component and a clamping component; the hydraulic power component is movably arranged on the long steel rail transport vehicle set and can move horizontally and vertically relative to the long steel rail transport vehicle set; the clamping component is connected with the hydraulic power component; the hydraulic power component drives the clamping component to move; and the clamping component is used for clamping steel rails. According to the lifting device, the hydraulic power component serves as a power source, the hydraulic power can be controlled precisely, the movement is sensitive, and a rigid acting force can be provided, so that internal stresses of the steel rails in a curve state are overcome in the handling process, the probability of shaking and straightening trends of the lifting device is low, and the safety in the operation process is improved.

Description

technical field [0001] The invention relates to mechanical technology, in particular to a lifting device and a long rail transport vehicle set. Background technique [0002] The long rail transport car set is a multi-functional car set specially designed for railway lines with many curves, small turning radius and large slope, such as subway lines, with the functions of rail closing, rail unloading and transportation. An electric hoist is arranged on the existing long rail transport car group, and the electric hoist is used for lifting the rail. Taking the subway track as an example, the subway track has many turns and a large slope, and the steel rail will generate rebound internal stress during the process of being transported to the curved section. When the rail is placed statically on the long rail transport car group or underground, due to the mutual friction between the long rail transport car group or the ground and the rail, the internal stress of the rail rebound i...

AI Technical Summary

Problems solved by technology

When the rail is hoisted by the electric hoist, this relative friction disappears, and the wire rope of the electric hoist cannot control the stress of the rail itself from a curved state to a straight state, thus increasing uncertain factors

[0003] It can be seen that there are at least the following problems in the prior art: when the electric hoist uses electric energy as the driving power in the process of lifting the rail, it is difficult to control the magnitude of the force, and the rail is prone to shaking; the wire rope of the electric hoist cannot control the rail itself from a curved state to a The rebound internal stress in the straight line state increases the uncertain factors in the operation process, which is not conducive to safe operation

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